Serial Flexing Battery Holder

The original design is simply brilliant however I have a need for serial battery packs to drive my fishing sounder and live well. As such these battery packs sit in a sealed plastic container so I had no need for mounting holes or the wire channels underneath. Removing both of these also reduced print time.

Rather than run wiring back down each cell I prefer to alternate the poles of each adjacent cell. To avoid confusion I also wanted the pole orientation markings to be correct for each cell